Rebel Wilson can't rely on her famous friends.
The 'Heat' actress has a number of Hollywood pals she knows she can always have a good time with, but wouldn't call them if she needed help.
She said: "I have a lot of celebrity friends. But they're all Hollywood friends.
"You can't call them if you fall over and break your leg, but if you're having a BBQ and wanna chitchat, you hang out with them, or you go to their house."
The 29-year-old star is known for her comedy characters, such as 'Pitch Perfect's Fat Amy, but she insists she'd be a "psycho" if she tried to be funny all the time.
Speaking to the new issue of Australia's ELLE magazine, she said: "Most people who know me know I'm not switched on all the time. I don't like to be like that in real life, because it's draining.
"If I'm how I am as Fat Amy all f***ing day... I can be sometimes, but I'd be a psycho if I was like that 24/7. You gotta chill out and just be normal for a bit, I say."
The 'Bridesmaids' star is always professional on set and gets annoyed when a scene requires multiple takes.
She said: "I hate people who do a lot of takes. I like to nail it and then go home. I like to crush it in, like, two takes."